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3 Commits

Author SHA1 Message Date
Erich Keane 3e08f66bb0 [Sema] Correct IUnknown to support Unknwnbase.h Header. 
Apparently, the MSVC SDK has a strange implementation that
causes a number of implicit functions as well as a template member
function of the IUnknown type. This patch allows these as InterfaceLike
types as well.

Additionally, it corrects the behavior where extern-C++ wrapped around an
Interface-Like type would permit an interface-like type to exist in a namespace.

Differential Revision: https://reviews.llvm.org/D38303

llvm-svn: 314557
 2017-09-29 21:06:00 +00:00
Erich Keane 99eda60b49 Allow IUnknown/IInterface types to come from extern C++ 
It was brought up in response to my last implementation for
this struct-as-interface features that at least 1 header in
the MS SDK uses "extern C++" around an IUnknown declaration.

The previous implementation demanded that this type exist
in the TranslationUnit DeclContext.  This small change simply
also allows in the situation where we're extern "C++".

llvm-svn: 314235
 2017-09-26 18:55:16 +00:00
Erich Keane 58bd603109 Fix the __interface inheritence rules to work better with IUnknown and IDispatch 
__interface objects in MSVC are permitted to inherit from __interface types, 
and interface-like types.

Additionally, there are two default interface-like types 
(IUnknown and IDispatch) that all interface-like
types must inherit from.

Differential Revision: https://reviews.llvm.org/D37308

llvm-svn: 313364
 2017-09-15 16:03:35 +00:00